You have an ability of becoming a ghost a s you mostly use it for mischief, scaring people, startling them etc.

One time you scared a couple walking across the street by becoming a ghost suddenly appear out of nowhere making them scream. You hid behind a wall in the alleyway giggling to yourself as you watched them.

Akutagawa "The hell are you doing?"

You felt someone grabbing you by the collar from behind, you looked from the corner of your eye a s you saw that it was Akutagawa.

Atsushi " Akutagawa! Be gentle."

Atsushi approached panting a bit probably he was running behind Akutagawa. An irk mark appeared on Akutagawa's forehead.

Akutagawa "Shut it, weretiger!"